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The development of quantitative methods for livestock production includes mathematical modelling based in plant-herbivore or predator-prey models to forecast and optimise meat production. An example is the Predator-Prey Grassland Livestock Model (PPGL) [7] to address the dynamics of the combined grass-animals system as a predator-prey dynamical ...
Watered stock is an asset with an artificially-inflated value. [1] The term most commonly refers to a form of securities fraud in which a company issues stock to someone before receiving at least the par value in payment. [2] Historically, stock watering was prevalent in the 19th century rail industry in the United States. [3] [4] [5]
Rain Bird had its origins in 1933 when Glendora, California, citrus grower Orton Englehart developed the first prototype of the horizontal action impact sprinkler.This new design offered slow rotation and more efficient watering than other sprinklers of that era, features that were long sought after by local irrigators.
It expanded into making feed for birds and other small animals, becoming the first commercial supplier of wild bird seed in 1955. [ 4 ] William Engler Sr., a long-term employee and son-in-law of William N. Knauf, purchased the company in 1964 and renamed it Kaytee Products, Inc. [ 5 ] His son, Bill Engler Jr., took over the company in 1982.
Bird trapping techniques to capture wild birds include a wide range of techniques that have their origins in the hunting of birds for food. While hunting for food does not require birds to be caught alive, some trapping techniques capture birds without harming them and are of use in ornithology research.
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